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Finding the Fourth Proportional to 10,045.70, 15,068.55 and 9,619.10

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Solution

The fourth proportional to 10,045.70, 15,068.55 and 9,619.10 is: 14,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,045.70 : 15,068.55 = 9,619.10 : x
  2. Step 2: Convert to fraction form
    10,045.70/15,068.55 = 9,619.10/x
  3. Step 3: Cross multiply
    10,045.70x = 15,068.55 × 9,619.10
  4. Step 4: Simplify right side
    10,045.70x = 144,945,889.31
  5. Step 5: Solve for x
    x = 144,945,889.31/10,045.70
  6. Step 6: Final answer
    x = 14,428.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.